Chordate nervous systems differ from nonchordate nervous systems in that
A) chordate nervous systems run along the ventral, or front, side of the animal.
B) chordate nervous systems run along the dorsal, or back, side of the animal.
C) nonchordate nervous systems have brains rather than ganglia.
D) nonchordate nervous systems provide faster reactions to sensory information.

Question

Quizplus · Accepted Answer

Chordate nervous systems run along the dorsal, or back, side of the animal, while nonchordate nervous systems run along the ventral, or front, side of the animal. This is a key distinguishing feature between the two types of nervous systems.

Therefore, option (B) is the correct answer.

Chordate Nervous Systems Differ from Nonchordate Nervous Systems in That